devised by (30 episodes, 1983-1991)
written by (12 episodes, 1981-1982)
writer (6 episodes, 1988)
creator (1 episode, 1981)
writer (25 episodes, 1987-1991)
written by (6 episodes, 1983-1986)
written by (7 episodes, 1983-1986)
writer (5 episodes, 1987-1988)
written by (2 episodes, 1983-1984)
written by (2 episodes, 1983)
written by (1 episode, 1983)